Can't Stop, Won't Stop. BadBoy!

A great place to do this is in the very beginning of chapter 19. Immediately after the chapter starts you need to push a rock out of the way to continue to the next area. Instead of pushing the rock away you need to attack it with the Lightning of Zeus. Use the L1+Square special attack. Each attack gives you 4 hits! It will take 6 minutes to farm 1000 hits. There are no enemies nearby, so nothing can break your combo. You have to upgrade the Lightning of Zeus to the second level to unlock this special attack!